Seiko Astron GPS Solar World Time SSE117 Limited Edition Casio G-Shock Classic Digital Mirror Face DW-5700BBMA-1 17 (40mm) or 15 (43mm)

17 (40mm) or 15 (43mm) micro gas tubes on hour

Caliber No: Spring Drive GMT 5R66

As the watch will be exposed to a range of temperature from minus 20 degrees Celsius to plus 70

Although one spends a third of their lifetime sleeping

Airplane mode

Seiko Astron GPS Solar World Time SSE117 Limited Edition Casio G-Shock Classic Digital Mirror Face DW-5700BBMA-1 17 (40mm) or 15 (43mm)Seiko Astron GPS Solar World Time SSE117 Limited Edition Limited Edition: 2500 pieces. Number engraved on back. Astron is the first watch to automatically recognize all time zones on Earth. With the touch of a single button, Astron adjusts to the correct local time everywhere on the planet.* Always accurate. Seiko Astron is accurate to one second every 100,000 years, thanks to the time signal it receives from the Atomic Clocks in each GPS satellite.